Using the empirical rule with bell-shaped (normal) distributions.

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Question: what percentage of the students have grade point averages that are at least 3.72? Please do not round your answer.
Suppose that grade point averages of undergraduate students at one university have a bell-shaped distribution with a mean of and a standard deviation of . Using the empirical rule, what percentage of the students have grade point averages that are at least ? Please do not round your answer.

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